public void Merge()
{
var emptyEdge1 = new MergedEdge <int, Edge <int> >(1, 2);
var emptyEdge2 = new MergedEdge <int, Edge <int> >(1, 2);
var subEdge1 = new Edge <int>(1, 2);
var subEdge2 = new Edge <int>(1, 2);
var subEdge3 = new Edge <int>(1, 2);
var edge1 = new MergedEdge <int, Edge <int> >(1, 2);
edge1.Edges.Add(subEdge1);
var edge2 = new MergedEdge <int, Edge <int> >(1, 2);
edge2.Edges.Add(subEdge2);
edge2.Edges.Add(subEdge3);
MergedEdge <int, Edge <int> > mergedEdge = MergedEdge.Merge(emptyEdge1, emptyEdge2);
Assert.IsNotNull(mergedEdge);
CollectionAssert.IsEmpty(mergedEdge.Edges);
mergedEdge = MergedEdge.Merge(emptyEdge1, edge1);
Assert.IsNotNull(mergedEdge);
CollectionAssert.AreEqual(new[] { subEdge1 }, mergedEdge.Edges);
mergedEdge = MergedEdge.Merge(edge1, emptyEdge1);
Assert.IsNotNull(mergedEdge);
CollectionAssert.AreEqual(new[] { subEdge1 }, mergedEdge.Edges);
mergedEdge = MergedEdge.Merge(edge1, edge2);
Assert.IsNotNull(mergedEdge);
CollectionAssert.AreEqual(new[] { subEdge1, subEdge2, subEdge3 }, mergedEdge.Edges);
}
public void Merge_Throws()
{
var edge = new MergedEdge <int, Edge <int> >(1, 2);
// ReSharper disable ReturnValueOfPureMethodIsNotUsed
// ReSharper disable AssignNullToNotNullAttribute
Assert.Throws <ArgumentNullException>(() => MergedEdge.Merge(edge, null));
Assert.Throws <ArgumentNullException>(() => MergedEdge.Merge(null, edge));
Assert.Throws <ArgumentNullException>(() => MergedEdge.Merge <int, Edge <int> >(null, null));
// ReSharper restore AssignNullToNotNullAttribute
// ReSharper restore ReturnValueOfPureMethodIsNotUsed
}